.picker {
  position: fixed;
  bottom: 0;
  height: 500px;
  z-index: 200;
  width: 100%;
  background-color: snow;
  font-family: PingFang SC, arial, helvetica, STHeitiSC-Light, Heiti SC, droidsansfallback, dengxian, microsoft yahei;
  -webkit-font-smoothing: antialiased;
}
.picker .button-header {
  display: flex;
  font-size: 15px;
}
.picker .button-header button {
  flex: 1;
  border: none;
  height: 37px;
  line-height: 37px;
  background-color: #f9f9f9;
  color: #dedcdc;
}
.picker .button-header button:nth-child(1) {
  text-align: left;
  padding-left: 15px;
  color: #999;
}
.picker .button-header button:nth-child(3) {
  text-align: right;
  padding-right: 15px;
  color: #1ba9ba;
}
.picker .straigth {
  height: 37px;
  line-height: 37px;
  padding: 0 15px;
  display: flex;
  justify-content: space-between;
}
.picker .straigth .am-list-line {
  display: inline-block;
}
